Question

a) y = ( 2 x ² – x + 1 ) ²

Answer 1

y = (2x^2 - x + 1)*(2x^2 - x + 1) 

y = 2x^2 * 2x^2 - 2x^2 * x + 2x^2*1 - x * 2x^2 + x*x - x* 1 + 1*2x^2  - 1*x + 1 * 1 

y = 4x^4 - 4x^3 + 5x^2 - 2x + 1

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17/01/2016
Sepauto - SSRC
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